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qtdeclarative5-doc-5.12.6-1.mga7.noarch.rpm

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<h1 class="title">squircle.h Example File</h1>
<span class="subtitle">scenegraph/openglunderqml/squircle.h</span>
<!-- $$$scenegraph/openglunderqml/squircle.h-description -->
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<pre class="cpp">

  <span class="comment">/****************************************************************************
  **
  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
  **
  ** This file is part of the demonstration applications of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:BSD$
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  ** accordance with the commercial license agreement provided with the
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  <span class="preprocessor">#ifndef SQUIRCLE_H</span>
  <span class="preprocessor">#define SQUIRCLE_H</span>

  <span class="preprocessor">#include &lt;QtQuick/QQuickItem&gt;</span>
  <span class="preprocessor">#include &lt;QtGui/QOpenGLShaderProgram&gt;</span>
  <span class="preprocessor">#include &lt;QtGui/QOpenGLFunctions&gt;</span>

  <span class="keyword">class</span> SquircleRenderer : <span class="keyword">public</span> <span class="type">QObject</span><span class="operator">,</span> <span class="keyword">protected</span> <span class="type">QOpenGLFunctions</span>
  {
      Q_OBJECT
  <span class="keyword">public</span>:
      SquircleRenderer() : m_t(<span class="number">0</span>)<span class="operator">,</span> m_program(<span class="number">0</span>) { }
      <span class="operator">~</span>SquircleRenderer();

      <span class="type">void</span> setT(<span class="type">qreal</span> t) { m_t <span class="operator">=</span> t; }
      <span class="type">void</span> setViewportSize(<span class="keyword">const</span> <span class="type">QSize</span> <span class="operator">&amp;</span>size) { m_viewportSize <span class="operator">=</span> size; }
      <span class="type">void</span> setWindow(<span class="type"><a href="qquickwindow.html">QQuickWindow</a></span> <span class="operator">*</span>window) { m_window <span class="operator">=</span> window; }

  <span class="keyword">public</span> <span class="keyword">slots</span>:
      <span class="type">void</span> paint();

  <span class="keyword">private</span>:
      <span class="type">QSize</span> m_viewportSize;
      <span class="type">qreal</span> m_t;
      <span class="type">QOpenGLShaderProgram</span> <span class="operator">*</span>m_program;
      <span class="type"><a href="qquickwindow.html">QQuickWindow</a></span> <span class="operator">*</span>m_window;
  };

  <span class="keyword">class</span> Squircle : <span class="keyword">public</span> <span class="type"><a href="qquickitem.html">QQuickItem</a></span>
  {
      Q_OBJECT
      Q_PROPERTY(<span class="type">qreal</span> t READ t WRITE setT NOTIFY tChanged)

  <span class="keyword">public</span>:
      Squircle();

      <span class="type">qreal</span> t() <span class="keyword">const</span> { <span class="keyword">return</span> m_t; }
      <span class="type">void</span> setT(<span class="type">qreal</span> t);

  <span class="keyword">signals</span>:
      <span class="type">void</span> tChanged();

  <span class="keyword">public</span> <span class="keyword">slots</span>:
      <span class="type">void</span> sync();
      <span class="type">void</span> cleanup();

  <span class="keyword">private</span> <span class="keyword">slots</span>:
      <span class="type">void</span> handleWindowChanged(<span class="type"><a href="qquickwindow.html">QQuickWindow</a></span> <span class="operator">*</span>win);

  <span class="keyword">private</span>:
      <span class="type">qreal</span> m_t;
      SquircleRenderer <span class="operator">*</span>m_renderer;
  };

  <span class="preprocessor">#endif // SQUIRCLE_H</span>

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